numbers 1 to 10are written on ten separe balls . the balls are kept in a box . at random one ball is picked up.what is the probability of getting a number 7.
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Answer:
as total probability are 10
we want 7
probability will be 1/10
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The probability of getting the number 7 on picking up a ball at random is 1 / 10.
• Numbers marked on separate balls are from 1 to 10.
=> Total number of balls = 10
Number of balls marked with number 7 = 1
• Probability of picking up the ball with number 7 = Number of balls with number 7 / Total number of balls
=> Probability of picking up the ball with number 7 = 1 / 10
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